I'd never tried overwintering onions before but put some in this time as a bit of an experiment. Have been pleasingly surprised as most seem to have survived...
I did do one thing different to 'normal' onions though, I earthed them up a bit rather than leaving the tops showing like you do normally. Not sure if this helped, or is even a good idea, but they seem okat the moment...
My only worry is that now the worst of the weather is over the onions may rot as they're more under the soil than perhaps they should be... Has anyone else done this? Should I un-earth them a little at some point to let the air get to them?
Any ideas? :)